000 00294nam a2200121Ia 4500
080 _a18.01.01 W925
245 _aWorld science report.... -[19 ]-
260 _bUNESCO
_aParisFR
_c19--
300 _av.
500 _aDocumentation Centre has: 1993
583 _c3/7/00
_kM2LMGR
942 _cC
_mW925
999 _c20474
_d20474